It's the official website for the department of labor. They have a variety of interactive media from videos to mobile apps.
Videos and photo-galleries of Labor Days throughout history.
These are historical photos and news articles of Labor Day celebrations. Just search “Labor Day.”
Labor Day Resources on Twitter
Sample Tweet: “New on the Blog - Labor Day 2012: Honoring the Great American Worker http://1.usa.gov/TFVwZx”
Sample Tweet: “Are you a specialist or a generalist? "How To Specialize Yourself Right Out Of A Job" via @jonstein. http://bit.ly/OC9UU2”
Sample Tweet: “#JobOfTheDay Wireless Data Architect w/ @JasperWireless -http://ow.ly/dis4d”